Certain printers let you alter the density settings of your toner and ink. It’s not your knowledge that the default settings may be too low, which causes you to print those thin prints. If your printer has the ink or toner density settings it should be possible to locate them after you’ve selected your printer in the ‘Devices & Prints. If it appears like you’re printing with an insufficient density, you can raise it a bit and test printing. Read more about Epson printer error code 0x97 which is affect your printing quality.